Both. The money used to be very good (major US airlines), but the unions tried to get everyone in to collect their dues, and let the wages slip.
On the other issue, how many of you grew up helping your fathers, friends and family work on cars? I mean, if it wasn't being worked on in my family's driveway, I was riding my bike around the neighborhood and hanging around someone's elses. How many kids have that experience now? The tradition is going away.